APA
(1966). Unesco: Twenty years of service to peace: 1946-1966. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Chicago
1966. Unesco: Twenty years of service to peace: 1946-1966. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Harvard
(1966). Unesco: Twenty years of service to peace: 1946-1966. Paris, France: United Nations Educational, Scientific and Cultural Organization.
MLA
Unesco: Twenty years of service to peace: 1946-1966. Paris, France: United Nations Educational, Scientific and Cultural Organization. 1966.